There won't be any licensed players for Linux, justl ike with DVD. There simply isn't the money there to make development of the DRM systems worth it. Considering also that the OS is wide open to being altered to bypass those, I'm going to guess that the BDA isn't too enthusiastic about the idea period

Winxdvd has a free blu-ray software, but I haven't ever access to the program page.And also recently, there is a free one on Leawo's new Blu-ray test page. Just need to submit the review and you can get the free keycode.